Magazine for a firearm

Abstract

A magazine for improved stacking capacity includes a housing, a front wall connected to a back wall by sidewalls, a base, a spring adapted to be received inside a recess in the base in order to reduce the space occupied by the spring. The spring having various spiral sections wherein the spiral section having different lengths so that the spiral sections fit into each other when the spring is compressed against cartridges in order to enable stacking of additional cartridges.

1. A magazine for firearm comprising:
 (a) a housing having a front wall, a back wall, side walls connecting said front wall to said back wall, and a base member attached to said housing, said base member defining a recess configured to be accessible from outside of said housing; 
 (b) a follower mounted inside said housing and arranged for carrying a plurality of cartridges; 
 (c) a spring mounted inside said housing and operatively connected to said follower and adapted to bias the follower, said spring having a generally spiral configuration, said spring including a plurality of spirals that generally fit inside each other when being pressed against said cartridges, said spring resting directly on said base member and terminating in a downwardly bent section that is removably engaged with said recess of said base member. 
 
   
   
     2. The magazine as set forth in  claim 1  wherein said bent section is a U-shaped section. 
   
   
     3. The magazine as set forth in  claim 1  wherein said plurality of spirals have different lengths. 
   
   
     4. The magazine as set forth in  claim 1 , wherein said base member is attached to said housing for sliding movement relative to said housing, and said downwardly bent section of said spring and said recess are located in a plane extending transversely to the direction of sliding movement of said base member. 
   
   
     5. The magazine as set forth in  claim 1 , wherein said base member is plate-shaped and includes a planar inner support surface that extends to a rear rim of said base member and said recess is adjacent to a front end of said support surface opposite to said rear rim. 
   
   
     6. A magazine for firearm comprising:
 (a) a housing having a front wall, a back wall, side walls connecting said front wall to said back wall, and a base member attached to said housing, said base member defining a recess configured to be accessible from outside of said housing; 
 (b) a spring mounted inside said housing and resting directly on said base member, said spring terminating in a downwardly bent section that is removably engaged with said recess of said base member; and 
 (c) a follower mounted inside said housing and operatively connected to said spring for enabling carrying and operative positioning said cartridges. 
 
   
   
     7. The magazine as set forth in  claim 6  wherein said bent section is a U-shaped section. 
   
   
     8. The magazine as set forth in  claim 6  wherein said spring includes a plurality of spirals and wherein said plurality of spirals generally fit inside each other when pressed against said cartridges, said plurality of spirals including a first spiral section, a second spiral section and a third spiral section that terminates with downwardly bent section, and wherein said third spiral section is longer than said first and second sections. 
   
   
     9. The magazine as set forth in  claim 8  wherein said third spiral section generally rests on said base member. 
   
   
     10. A magazine for firearm comprising:
 (a) a housing having a front wall, a back wall, side walls connecting said front wall to said back wall, and a base member attached to said housing, said base member defining a recess configured to be accessible from outside of said housing; 
 (b) a spring received within said housing and having an end that is removably engaged with said recess; and 
 (b) a follower mounted inside said housing and adapted to be operatively connected to said spring for enabling carrying and operative positioning of at least one cartridge. 
 
   
   
     11. The magazine as set forth in  claim 10  wherein said spring terminates with a bent section that is removably engaged with said recess of said base member. 
   
   
     12. The magazine as set forth in  claim 11  wherein said bent section is a U-shaped section. 
   
   
     13. The magazine as set forth in  claim 10  wherein said spring includes a plurality of spirals and wherein said plurality of spirals generally fit inside each other when being pressed against said at least one cartridge. 
   
   
     14. A magazine for firearm comprising:
 (a) a housing having a front wall, a back wall, side walls connecting said front wall to said back wall, and a base member attached to said housing, said base member defining a recess configured to be accessible from outside of said housing; 
 (b) a spring mounted inside said housing including a plurality of spirals, said spring movable between a first extended position and a second retracted position, wherein said spring has a height in said second retracted position less than a sum of the thickness of said plurality of spirals, and wherein said spring terminates with a downwardly bent section that is removably engaged with said recess; and 
 (c) a follower mounted inside said housing and operatively connected to said spring for enabling carrying and operative positioning of said cartridge.